STS-135 external tank S-Band video downlink over Europe
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Uploaded by nilsatcom on Jul 8, 2011
STS-135 Atlantis's ET video downlink received over Europe 24 minutes after launch on 2272.5 MHz FM. Normally an internal timer disables the 10 Watts s-band video transmitter onboard the ET about 15 Minutes after launch, to avoid interference with S-Band communication systems in Europe. On this final Space Shuttle mission however, engineers decided to disable the timer in order to capture video from the ETs perspective when it reentrys the earths atmosphere about 60 minutes after launch. Unfortunately the signal was at 4° elevation only before disappearing behind the horizon again, which is the reason why the received video is only so short. Reception used to receive this is a 90cm mesh dish with 3,5 turn RHCP Helix for 2250 MHz, EME103B S-Band LNA and a G1MFG S-Band video receiver.
- 20 likes, 2 dislikes
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Uploader Comments (nilsatcom)
All Comments (11)
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great job, waiting for the nasa video too.
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The word on the Strasse is that very few tracking stations received anything. Remember, the tank is in a slow tumble as it falls. When in the lower atmosphere its behaviour is incredibly unpredictable.
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A credit to you Nils a great video and maybe some day down the line NASA may post the video we all want to see.If or when i find it i will post the link on here!!
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Nice catch.
Hey! Anyone get footage when it came back into the atmosphere?
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Oh geile Sache Nils!!!
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Cool video Nils...!
- Simon
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Volgens mij is het winter ...het sneeuwt...
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Glückwunsch zum Empfangserfolg ! Eine Videoübertragung von einem Raumfahrzeug zu empfangen ist eine Königsdisziplin. ;-)
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Hi
Would you be so kind as to outline the equipment you used to receive this.
Thanks
Neil
NToombes 7 months ago
Hi NToombes, as written in the description above: "Reception used to receive this is a 90cm mesh dish with 3,5 turn RHCP Helix for 2250 MHz, EME103B S-Band LNA and a G1MFG S-Band video receiver."
Nils
nilsatcom 7 months ago